Batemans Bay police are investigating an alleged altercation between two couples in Batemans Bay at the weekend. Police said the incident took place sometime between 8-8.30pm on Sunday, January 13, at the Clyde River T-wharf. It is believed the incident may have been witnessed by people fishing there at the time. Police are appealing to any witnesses to contact the station on 4472 0099 or Crime Stoppers on 1800 333 000.